Suggested Retail: $45. Fosi Audio M04 - Mono Channel Digital Class D Integrated Power Amplifier for Home Theater - Rated 100W MAX The Fosi Audio M04 Subwoofer Amplifier is a powerful and versatile mono channel digital class D integrated amp designed for home theater systems. Rated at 100W MAX, it can drive passive speakers and subwoofers using high-quality components from Texas Instruments and NE5532. The M04 features a built-in low pass filter and sub frequency control, delivering deep, crisp, and clean low-frequency sound. Its compact size ensures it fits efficiently into any home audio setup. Brand: Fosi Audio. [Reference: 70rbH6t8Ftdm2YWYEleUSg]. LOT STICKER: OH002-00001499-08. Type: Regular. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.